Update react deps

Author: nwinch

Diff for: README.md

@@ -11,6 +11,8 @@ npm install must-jsx
 
 ## Usage
 
+*Note*: If you're using `[email protected]` please use version `2.0.0` or less.
+
 ```javascript
 import must from "must"
 import mustJSX from "must-jsx"

Diff for: package.json

@@ -26,9 +26,9 @@
   },
   "homepage": "https://github.com/nwinch/must-jsx#readme",
   "dependencies": {
-    "react": "^0.14.8",
-    "react-addons-test-utils": "^0.14.8",
-    "react-element-to-jsx-string": "^2.6.1"
+    "react": "^15.3.0",
+    "react-addons-test-utils": "^15.3.0",
+    "react-element-to-jsx-string": "^4.0.0"
   },
   "devDependencies": {
     "babel-cli": "^6.4.5",